The simplified expression for combined amount saved by Donna and her husband is 106.30N+50
Step-by-step explanation:
Given,
Function for amount saved by Donna;
A = 50+30.65N
Where N is the number of weeks.
Function for amount saved by Donna's husband
B = 75.65N
Let ,
The combined total amount saved be T.
T = A+B
[tex]T=(50+30.65N)+(75.65N)\\T=50+30.65N+75.65N\\T=50+106.30N\\T=106.30N+50[/tex]
The simplified expression for combined amount saved by Donna and her husband is 106.30N+50